双头延长杆型号规格:型号柄径D柄长L螺母SL16-ER11AD-10016100ER11A六角螺母SL20-ER11AD-502050ER11A六角螺母SL20-ER11AD-602060ER11A六角螺母SL20-ER11AD-702070ER11A六角螺母SL20-ER11AD-802080ER11A六角螺母SL20-ER11AD-952095ER11A六角螺母SL20-ER11AD-10020100ER11A六角螺母SL20-ER11AD-10920109ER11A六角螺母SL20-ER11AD-12020120ER11A六角螺母SL19.05-ER11AD-5019.0550ER11A六角螺母SL20-ER11MD-10020100ER11M圆螺母SL15-ER11MD-601560ER11M圆螺母SL16-ER11MD-701670ER11M圆螺母SL16-ER11MD-10016100ER11M圆螺母SL20-ER11MD-502050ER11M圆螺母SL20-ER11MD-602060ER11M圆螺母SL20-ER11MD-802080ER11M圆螺母SL25.4-ER16AD-7025.470ER16A六角螺母SL25.4-ER16AD-12025.4120ER16A六角螺母SL20-ER16AD-702070ER16A六角螺母SL25-ER16AD-702570ER16A六角螺母SL25.4-ER16MD-5025.450ER16M圆螺母SL25.4-ER16MD-6225.462ER16M圆螺母SL25.4-ER16MD-7025.470ER16M圆螺母SL20-ER16MD-602060ER16M圆螺母SL20-ER16MD-702070ER16M圆螺母SL20-ER16MD-802080ER16M圆螺母SL20-ER16MD-10020100ER16M圆螺母SL22-ER16MD-702270ER16M圆螺母SL22-ER16MD-10022100ER16M圆螺母SL25-ER16MD-702570ER16M圆螺母SL32-ER20AD-553255ER20A六角螺母SL32-ER20AD-10032100ER20A六角螺母SL32-ER20MD-803280ER20M圆螺母SL25-ER20MD-702570ER20M圆螺母SL32-ER25AD-553255ER25A六角螺母SL32-ER25MD-10032100ER25UM圆螺母SL35-ER25MD-10035100ER25UM圆螺母专配弹簧夹头型号：ER夹头（夹头需另购）产品特点:1:ER直杆型延长筒夹柄，柄身较长，适用深孔加工。2:可减少对加***具之使用，可降低成本，提***率。3:延长杆外径，和其他部位都经过精密研磨，可消除不平衡量，增加切削时的安定性。4.螺帽直接转紧，刚性高，夹持力强,分A型和M型号可供客户选择。)